Google - Google their name in the search engine because sometimes other researchers
may have posted on a webpage. Try just the last name unless it is a very common one.
Add qualifiers like +McKees Rocks or +Allegheny to limit the scope of your search. Search in
Google Books also as more and more books are being added and some can even be viewed in
their entirety online.

Mailing Lists and message boards can be fruitful when searching for your ancestors. Don't
limit your search to just the Surname lists and boards. The county and other surrounding counties
of the ancestor you are searching for can many times provide leads. Even in the early part of the
1900's, people moved around, especially when looking for work. Strange as it may seem, people born in
one county decided to be buried in another. Newspapers supporting both counties many times carried
the obituary.